What Is the Reaction for the Standard Enthalpy of Formation

question 18

Multiple Choice

What is the reaction for the standard enthalpy of formation for HCl(g) ?

• A)H⁺(aq)+ Cl^-(aq)→ HCl(g)
• B)1/2 H₂(g)+ 1/2 Cl₂(l)→ HCl(s)
• C)NH₃(g)+ Cl₂(g)→ NH₂Cl(g)+ HCl(g)
• D)1/2 H₂(g)+ 1/2 Cl₂(g)→ HCl(g)
• E)1/2 H₂(l)+ 1/2 Cl₂(g)→ HCl(l)

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